HBASE-22294 Removed deprecated method from WALKeyImpl

[anis016]

Removed deprecated methods in ReplicationLoadSink.
Fixes: HBASE-22294

[HorizonNet]

Conditional approval, pending QA bot.

[Apache-HBase]

🎊 +1 overall

Vote	Subsystem	Runtime	Comment
0	reexec	20	Docker mode activated.
		_ Prechecks _
+1	hbaseanti	0	Patch does not have any anti-patterns.
+1	@author	0	The patch does not contain any @author tags.
-0	test4tests	0	The patch doesn't appear to include any new or modified tests. Please justify why no new tests are needed for this patch. Also please list what manual steps were performed to verify this patch.
		_ master Compile Tests _
+1	mvninstall	269	master passed
+1	compile	52	master passed
+1	checkstyle	76	master passed
+1	shadedjars	279	branch has no errors when building our shaded downstream artifacts.
+1	findbugs	193	master passed
+1	javadoc	34	master passed
		_ Patch Compile Tests _
+1	mvninstall	251	the patch passed
+1	compile	54	the patch passed
+1	javac	54	the patch passed
+1	checkstyle	74	the patch passed
+1	whitespace	0	The patch has no whitespace issues.
+1	shadedjars	278	patch has no errors when building our shaded downstream artifacts.
+1	hadoopcheck	538	Patch does not cause any errors with Hadoop 2.7.4 or 3.0.0.
+1	findbugs	193	the patch passed
+1	javadoc	32	the patch passed
		_ Other Tests _
+1	unit	8604	hbase-server in the patch passed.
+1	asflicense	25	The patch does not generate ASF License warnings.
		11044

Subsystem	Report/Notes
Docker	Client=17.05.0-ce Server=17.05.0-ce base: https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-186/1/artifact/out/Dockerfile
GITHUB PR	#186
Optional Tests	dupname asflicense javac javadoc unit findbugs shadedjars hadoopcheck hbaseanti checkstyle compile
uname	Linux 054187f2f0e7 4.4.0-143-generic #169~14.04.2-Ubuntu SMP Wed Feb 13 15:00:41 UTC 2019 x86_64 GNU/Linux
Build tool	maven
Personality	/testptch/patchprocess/precommit/personality/provided.sh
git revision	master / ab3d6cf
maven	version: Apache Maven 3.5.4 (1edded0938998edf8bf061f1ceb3cfdeccf443fe; 2018-06-17T18:33:14Z)
Default Java	1.8.0_181
findbugs	v3.1.11
Test Results	https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-186/1/testReport/
Max. process+thread count	4849 (vs. ulimit of 10000)
modules	C: hbase-server U: hbase-server
Console output	https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-186/1/console
Powered by	Apache Yetus 0.9.0 http://yetus.apache.org

This message was automatically generated.